Steam-diaphragm regulator



Jul 22, 1924.

- A. T. GARDEN STEAM DIAPHRAGM REGULATOR 2 Sheets-Shea t 1 Filed Dec. 15, 1922 I atkmwm a July 22, 1924.

A. T GARDEN STEAM DIAPHRAGM REGULATOR Filed Dec. 15 1922 2 Sheets-Sheet 2 AZ arden,

Patented July 22, 1924,

1 UNITED ate-creamer canneu, or aucusra, Kansas,

' s rnAM mArH-RAc ;REGULatroR.'

' Application, filed December 15, 1922, Serial No. 607,161.

To all whom it may concern .1 A j Be it knownthat; I, -A1znxannea T. GAR- DEN, a citizen of the United States, residing at Augusta, in the county of Butler and State of Kansas, have invented a new and useful Steam-Diaphragm Regulator, of which the following is a specification.

This invention aims to provide a simple means, responsive to boiler pressure, for regulating the supply of fuel to the means for heating the boiler, for regulating the draft, or for any other analogous purpose, a single diaphragm only being used in the device forming the subject matter of this application, and novel means being provided whereby the device may be made to operate at different boiler pressures.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in longitudinal section, a device constructed in accordance with the invention, parts appearing in. elevation, and parts being broken away; Figure 2 is a top plan; Figure 3 is an end elevation.

In carrying out the invention, there is provided a casing denoted generally by the numeral 1, and including a base 2 having outstanding projectlon 3 which is provided with an opening 4:, the base plate carrying an inverted conical body 5 provided with a reduced internally threaded neck 6, there being a chamber 7 in the body 5. A yieldable diaphragm 8 extends across the casing 7 and is mounted on the base plate 2. An annular cap 9 is superposed on the diaphragm 8 and is connected to the base plate 2 by securing elements 10. The cap 9 has supports 11 which overhang the opening 12 in the cap 9. The cap 9 is supplied with upstanding guides 14 disposed opposite to the supports 11. A pivot element 15 is mounted in the supports 11 and forms a fulcrum for a lever 16 extended between the supports.

vided, with outstai iding bearings, 18 wherein a shaft 19 is mounted for rocking movement, the shaft having transverse openings 20 adapted to receive means 21 whereby the burners or the like are controlled. Retainers 22, preferably in the form of screws, are threaded into the ends of the shaft 19 and engage the members 21 to hold them in place, adjustably in the shaft 19.

A foot 23 rests on the diaphragm 8 and is supplied with upstanding ears 2 1, between which the lever 16 is located. A pivot element-25 forms a connection between the ears 24 of the foot 23 and the lever 16. The plunger 26 is mounted for reciprocation in the opening 41 of the projection 3 on the base plate 2 and is supplied at its upper end with a U-shaped head 27, receiving the lever 16, the head being connected to the lever by Tl ejlever .16 has a. transverse head; 17 F proa pivot element 28. An adjusting device 29,

preferably a nut, is mounted on the lower end of the plunger 26. A retainer 30 surrounds the plunger 26 and rests on the nut 29, the retainer having an upstanding neck 31. A compression spring 32 surrounds the plunger 26, one end of the compression spring abutting against the projection 3 on the base plate 2, the other end of the spring abutting against the retainer 30 and surrounding the neck 31 of the retainer, the neck serving to hold the spring 32 against lateral movement.

The neck 6 of the casing 1 is adapted to be placed in communication with a boiler, and when pressure builds up in the chamber 7, the diaphragm 8, cooperating with the foot 23, will swing the lever 16 on its fulcrum 15, motion being transmitted to the parts .21 and the desired control being secured. The lever 16 is guided in its swinging movement by the parts 14. When the lever 16 swings upwardly, the spring 32 will be put under compression. It is possible to vary the compressive effort of the spring 32 by changing the position of the nut 29 on the plunger 26. The spring 32 acts counter to the pressure in the chamber 7 and the device, therefore, may be so constructed as to operate at any desired pressure.

What is claimed is In a device of the class described, a base having an opening, a diaphragm extended across the opening, an annular cap on the diaphragm and having a support which overhangs the opening, the-cap being probase, a lever slidable in the guide and pivoted to the support at a point closely adjacent to the inner end of thesupport, a foot pivoted to the lever and engaging the diaphragm Within the cap, a plunger slidable freely in the base and pivoted at one end to the lever, an adjusting device onthe other end of the plunger, and a compression spring surrounding a portion of the plunger, and engaging the base and the adjusting device.

In testimony that I claim the foregoing 15 as my own, I have hereto aflixed my signa- 'ture inthe presence of tWo Witnesses.

ALEXANDER T. GARDEN. Witnesses REA A. GARDEN, JENNIE GJVANDEVENTER. 

